Cost-benefit of a clinical services integrated with a decentralized unit dose system.

Clinical pharmacy services are believed to be beneficial to patient care and to have the potential to reduce drug costs. This study was designed to apply cost-benefit analysis techniques to selected clinical pharmacy services provided by staff pharmacists assigned to a mobile decentralized unit-dose drug distribution system. Pharmacists' interventions were identified and recorded by the pharmacists and the investigator over an eight-week period. Interventions, to which a monetary value could be assigned, included non-formulary drug use, drug regimen adjustments, and the duration of drug therapy. A total of 543 interventions were recorded or observed. Of these, 174 (32 percent) fit the criteria for inclusion in the study. Those interventions accepted by physicians (87 percent) were assigned a dollar value and tabulated. Costs to provide the service were the pharmacists' salaries. Benefit to cost ratios of 1.08 and 1.59 demonstrated that the benefits accrued from selected clinical pharmacy services exceeded the costs to the hospital.